I've seen which developers became vibecoders. They were the people I'd have wished to get rid of.

The ones who never acknowledge a mistake even if the process is crashing; the ones who put "return true" in a test so that the test doesn't execute and will insist that you broke their code if you remove the return true and when the test actually runs it fails; the ones who read a blog post about some new thing and decide we need to do like that; the ones who will write code that fails and then be nowhere to be seen when there is customer support to do.